'66 4 speed,carpet or rubber mat?

I have a '66 Valiant 100 with an original 4 speed.When I bought the car it had an aftermarket carpet in it.According to the original literature the Valiant 100 came with a rubber floor mat instead of carpet.My big question is has anyone ever SEEN an original '66 4 speed car with a factory installed rubber mat? I have the broadcast sheet from this car but I don't see any reference to carpet or floormat.Any suggestions on how to know for sure what it came with? Thanks! Rod.